%A Fangmei Sun, WuGaridi %T Exact Estimate of n-Widths of a Convolution Function Class in Orlicz Spaces %0 Journal Article %D 2019 %J Acta mathematica scientia,Series A %R %P 720-729 %V 39 %N 4 %U {http://121.43.60.238/sxwlxbA/CN/abstract/article_15900.shtml} %8 2019-08-26 %X

In this paper, we study the n-widths of a 2π-periodic convolution function class defined by linear differential operators with real coefficient in Orlicz spaces, and obtain the exact values of n-K width, n-G width, n-L width, n-B width of this function class and its corresponding optimal subspaces.